Screening And Breeding Sorghum For Midge Resistance

Agrawal, B L and Sharma, H C and Abraham, C V and Vidyasagar, P (1986) Screening And Breeding Sorghum For Midge Resistance. In: Proceedings of the First Australian Sorghum Conference, February, 1986, Queensland Agricultural College, Gatton.

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Sorghum midge, Contarinia sorghicola Coq. i s the most Important pest of grain sorghum, Sixteen gennplssm and 14 breeding lines showlng stable resistance to midge have been i d e n t i f i e d . Progress has hen made i n developing improved midge resistant breeding lines wlth acceptable y i e l d and grain qualit). Sorghum variety, ICSV 197 (PM 11344) has shown high levels of midge resistance over seasons and locations. I t s y i e l d potential i s comparable to some of the comnercial cultivars. PI4 6751, PH 7061 and PM 8787-2 have been i d e n t i f i e d as non-restorers. Midge resistance i s a quantatively inheri ted t r a i t governed by both addi ti ve and nonadd i ti ve , but predominantly nonaddi ti ve genes. Dominant genes contributed most towards midge resistance followed by additive x additive, additive x dominance, and additive gene effects.

Item Type: Conference or Workshop Item (Paper)
Subjects: Mandate crops > Sorghum
Depositing User: Library ICRISAT
Date Deposited: 05 Dec 2011 15:03
Last Modified: 05 Dec 2011 15:03
Acknowledgement: The University of Agricultural Sciences, Dhamad, Karnataka, India and G.B. pant University of Agriculture and Technology, Pantnagar, Uttar Pradesh, India; the DeKalb Seed Company i n Argentina; ICRISAT's Regional Sorghum Program i n Mexico; and AICSIP, Hyderabad, India have helped us test our midge resistant material under natural conditions. We thank them f o r t h e i r cooperation.
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